The body of Philip Patnaude, 28, was found Monday morning about 30 feet from the mouth of Belmont Harbor, in an area where police divers had been searching for the Lakeview resident. Patnaude disappeared about 2 a.m. Saturday after telling friends he was taking a cab to the lakefront.

The Cook County medical examiner’s office today determined Patnaude died from drowning, but did not rule on the manner of his death, although family members said they were told by police that it appeared Patnaude slipped into the water and struggled to get out before dying.

A brief visitation service at 10 a.m. Friday at Christ Church, 31st and York Road, Oak Brook will be followed by a funeral service at 11 a.m.

Patnaude's Family today thanked those who helped in the search for him over the weekend.

"When Phil went missing it was instantly evident that he touched a remarkable number of hearts during his short but full life,” his family said in a statement released today. “Friends, family, and friends of family all came together to find him. When the worst came to light, it's been those people who have helped remember him best. Their outpouring of love and support is nothing other than a direct reflection of the kind of man Phil was.”

"The marine crews on hand to help find Philip were professional and kind,” Patnaude’s family said. “His friends who volunteered to canvas the city he loved brought an immense level of comfort during otherwise distressed times. Phil was loved because he loved. It's now time to celebrate Phil's amazing life."

Patnaude disappeared early Saturday morning after telling friends he was headed to the lakefront. Family and friends said they found the Patnaude's jacket south of Belmont Avenue in the harbor on Sunday afternoon.

Patnaude was last seen about 2:30 a.m. Saturday in a cab near Wellington Avenue and Broadway, where he told a friend he was going to the lakefront, police said.

According to family members, Patnaude left the East Lakeview neighborhood where he and a large group of friends had been out drinking a little after 2 a.m. and took a cab to Belmont Harbor.

Patnaude lived with his fiancée in the 3200 block of North Ashland Avenue in the Lakeview neighborhood on the North Side, graduated from the University of Illinois with a degree in aeronautical engineering and works for Sargent & Lundy, which offers consulting services to the energy industry.

A burst of thunderstorm activity across the Chicago area in Sunday afternoon resulted in multiple injuries and a death at an event in west suburban Wood Dale, the collapse of a dome in northwest suburban Rosemont and the temporary evacuation of the music festival Lollapalooza in Grant Park downtown.

The father of a 20-year-old Carol Stream, Ill., woman who drowned at Indiana's Porter Beach on Friday night identified her body Sunday afternoon after a rescue team pulled her from Lake Michigan, authorities said.